Question

show that 1,2and 5 are zeroes of the polynomial x3-8x2+17x-10​

Answer 1

Step-by-step explanation:

i)sum of zero

alpha +beta +gama = -b/a

1 +2+5 =-( -8) =8

8 =8

l.h.s =r.h.s

ii)sum of product of zero

alpha ×beta +gama ×alpha +beta ×gama =c/a

1×2+2×5+2×5 = 17

2+10+10 =17

22=17

not equal

iii)product of zero

alpha ×beta×gamma = -d/a

1×2×5= -(-10)

10 =10

equal...

hopefully helping you.....